CPU⌁
01 / PROCESSOR
The Core Keep
Decode instruction streams and keep the board thinking.
LIVE FROM THE SILICON UNDERGROUND
Play inside
the board.
A tiny multiplayer world built into a giant motherboard. Explore, solve quick-fire hardware challenges, and learn what makes your favorite devices tick.
⌁◉✦— cats exploring
SECTOR 00HOME SWEET HOME
CAT-OS v1.0BUILT TO EXPLORE
EVERY COMPONENT HAS A STORY✳EVERY COMPONENT HAS A STORY✳EVERY COMPONENT HAS A STORY✳
01 / THE WORLD
One board.
Many systems.
Follow the glowing traces to discover the districts that power every digital moment. There’s always something humming around the corner.
02 / MEMORY
Memory Marsh
Match the right data before it evaporates.
03 / GRAPHICS
Pixel Peaks
Route the render pipeline and paint the signal.
02 / PLAY TO LEARN
Small games.
Big “ohhh.”
01
Touch the tech
Walk right up to the components and see them at life-size.
02
Fix the flow
Every challenge is a tiny, satisfying systems puzzle.
03
Keep the knowledge
Finish a mission and unlock a real hardware fact.
A NOTE FROM THE CREATORMaking hardware
Making hardware
feel alive.
board.cat is a playful sub-project of BoardRepo by Chih Yang — a place where open hardware becomes something you can explore, understand, and share.
@ChihYang04 on X ↗✳
Built for curious minds, hardware tinkerers, and cats who keep walking across the keyboard.
Visit BoardRepo ↗